| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
|
|
タイトル |
Mesoporous silicas containing carboxylic acid : Preparation, thermal degradation, and catalytic performance |
|
言語 |
en |
| 作成者 |
Sumiya, Sadanobu
Kubota, Yuka
Oumi, Yasunori
Sadakane, Masahiro
Sano, Tsuneji
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
|
|
権利情報 |
Copyright (c) 2009 Elsevier B.V. All rights reserved. |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Carboxylic acid |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Degradation |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Surfactant |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
SBA-15 |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
MCM-41 |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Sucrose hydrolysis |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
430 |
| 内容記述 |
|
|
内容記述 |
The calcination and thermal degradation behaviors of surfactants in mesoporous silicas SBA-15 and MCM-41 were investigated by FT-IR, C-13 CP/MAS NMR, TG/DTA, and GPC. It was found that carboxylic acid-containing products were generated as active components in the mesopores of SBA-15 and MCM-41 from the triblock copolymer (PEO)(20)(PPO)(70)(PEO)(20) and cetyltrimethylammonium bromide (CTAB), respectively; the latter materials were used as templates. The carboxylic acid-containing mesoporous silica obtained showed a catalytic activity for hydrolysis of sucrose. The acidity was evaluated by means of NaOH titration. The acidity sensitively depended on both the calcination temperature and the atmosphere; the maximum appeared at 150 degrees C in air for SBA-15 where the highest activity was observed. However, the product in MCM-41 showed a lower catalytic activity than that in SBA-15. The SBA-15 product was easily leached from the mesopores of SBA-15 into the solution, but the degree of leaching for MCM-41 was considerably smaller than that for SBA-15. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Elsevier Science BV |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
AO |
|
出版タイプResource |
http://purl.org/coar/version/c_b1a7d7d4d402bcce |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1016/j.apcata.2009.10.015 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
http://dx.doi.org/10.1016/j.apcata.2009.10.015 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0926-860X |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA10821202 |
| 開始ページ |
|
|
開始ページ |
82 |
| 書誌情報 |
Applied Catalysis A: general
Applied Catalysis A: general
巻 372,
号 1,
p. 82-89,
発行日 2010-01-15
|
| 旧ID |
29239 |
ApplCatalGen_372_82.pdf (563.5 KB)
